70/140H-8 Series (2310KB) - TAIYO

35
Precautions for use
Precautions
for use
Use cylinders only under the operating conditions within
the allowable range specified for each series. Otherwise,
the performance may become unreliable as
described below, or accidents may occur.
1. Pressure
The pressure supplied to cylinders, including surge pressure,
must be lower than the maximum allowable level.
The use with the pressure exceeding the maximum
allowable level may lead to galling in the slipping part or
the damaged cylinder.
2. Speed
Use cylinders within the allowable working speed range.
Otherwise, troubles below may occur.
When cylinders are used with the speed slower than
the lower limit of the working speed range:
● Stick slip (cracks)
● Unsmooth speed control
When cylinders are used with the speed faster than the
upper limit of the working speed range:
● Damaged cylinder due to increased kinetic energy
● Damaged packings due to slipping heat
● Increased internal or external oil leak due to
thickened oil film
● Higher flow velocity in the piping part, causing the
lowered energy efficiency due to increased pressure
loss
3. Environmental conditions
3-1) Temperature
Use cylinders only within the allowable working temperature
range. Otherwise, troubles below may occur.
When cylinders are used at the temperature lower than
the lower limit of the working temperature range:
● Brittle fracture due to lowered stretch of cylinder
material
● Oil leak due to lowered elasticity of packings
When cylinders are used at the temperature higher than
the upper limit of the working temperature range:
● Damage due to lowered strength of cylinder
material
● Damaged packings
● Galling due to thermal expansion in the slipping part
Prior to the use of cylinders, be sure to read
carefully the precautions below.
For the use of the items below, use them at the
temperature lower than the upper limits shown below.
Switch set cylinder
Cylinder with position
detector
Items
WR • WS types
Other switches
Cylinder with primary components for which
aluminum alloy is used
(35S-1 • 100S(W)-1 • 35SY-1)
35P-3
70/140P-8
70 • 140MT-3
60°C or lower
70°C or lower
50°C or lower
65°C or lower
70°C or lower
If several items with different upper limits of oil temperature
are used, adopt the lowest temperature limit, and
use the items at the temperature lower than the adopted
upper limit.
Ex.) When using 100SW-1R with the WR type switch,
use it at 60°C or lower.
3-2) Rust-proof measures
The use and storage of cylinders in the places where
are highly humid, or are splashed with water or sea water
require the consideration of rust-proof and anticorrosion
measures. In such a case, contact us.
3-3) Installing location
(1) Use cylinders only indoors.
(2) Avoid the use in the places where are subjected to
dusts and vibrations.
DO NOT use them under the environmental conditions
shown below. The use under these conditions requires
the protection of the rod part, rust-proof measures,
review of part material, magnetic shield, and vibrationproof
measures. If any countermeasure required for
the cylinder side, contact us.
Working environmental conditions
Sands, dusts, soil, chips, welder spatter, etc.
Rain, water, sea water, oil, chemicals, etc.
Direct sunlight (ozone), humidity, etc.
High temperature, low temperature, freezing, etc.
Highly magnetic field
Vibrations
Upper
limit oil
temperature